The Engineered series base layer, made from a blend of nylon and elastane, efficiently wicks moisture away from the skin. Its form-fitting design further enhances this effect. The shirt's pattern has been carefully designed to minimize the risk of chafing, making it extremely comfortable to wear. - Slim fit - 3D knit fabric: soft, retains body heat, and wicks moisture This product is part of Endura's FS260 Pro collection. FS260 garments are designed to accommodate an aggressive riding position when needed and are well-suited for both long rides and high-intensity training.